mirror of
https://github.com/alsa-project/alsa-utils
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4d413567b0
Add support for pre-processing object instances in the input config. An object's attributes can be set in multiple places such as, within the object instance, default values in the class defnition, inherited from a parent object or explicitly set in a parent object. Before converting the object config into the relevant section in the existing syntax, all the attribute values must be consolidated into one place so that it is easy to verify if all mandatory attributes are set. Also, the name of the object will be constructed from the attributes defined in the attributes.constructor[] config in the class definition and the unique attribute's value must be set from the value passed in the object instance. This patch create a temporary config for each object instance and populates its unique attribute value. The rest of the steps will be added in the following patches. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PRE_PROCESSOR_H
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#define __PRE_PROCESSOR_H
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#include <stdarg.h>
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#include <stdbool.h>
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#include <string.h>
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#include "topology.h"
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#define DEBUG_MAX_LENGTH 256
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/* debug helpers */
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void tplg_pp_debug(char *fmt, ...);
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void tplg_pp_config_debug(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg);
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/* object helpers */
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int tplg_pre_process_objects(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg,
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snd_config_t *parent);
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snd_config_t *tplg_object_get_instance_config(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class_type);
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/* class helpers */
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snd_config_t *tplg_class_lookup(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg);
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snd_config_t *tplg_class_find_attribute_by_name(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, const char *name);
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bool tplg_class_is_attribute_mandatory(const char *attr, snd_config_t *class_cfg);
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bool tplg_class_is_attribute_immutable(const char *attr, snd_config_t *class_cfg);
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bool tplg_class_is_attribute_unique(const char *attr, snd_config_t *class_cfg);
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const char *tplg_class_get_unique_attribute_name(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class);
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snd_config_type_t tplg_class_get_attribute_type(struct tplg_pre_processor *tplg_pp,
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snd_config_t *attr);
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const char *tplg_class_get_attribute_token_ref(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, const char *attr_name);
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long tplg_class_attribute_valid_tuple_value(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, snd_config_t *attr);
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/* config helpers */
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snd_config_t *tplg_find_config(snd_config_t *config, const char *name);
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int tplg_config_make_add(snd_config_t **config, const char *id, snd_config_type_t type,
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snd_config_t *parent);
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char *tplg_snprintf(char *fmt, ...);
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#endif
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